Window-screen structure



K. F. JORSS Nov. 25, 1930.

WINDOW SCREEN STIIUCTURE Nov. 25, 1930.

K .F. JORSS WINDOW SCREEN STRUCTURE Filed April 8, 1929 2 Sheets-Sheet 2duo/OM 5 9 type, formed of angle irons, on which the which the sashabut-s, when the latter is in Patented Nov. 25, 1930 KARL r. mass, orWASHINGTON, DISTRICT or COLUMBIA, ASSIGNOR To caITTA L GASEMENT WINDOWCOMPANY, or DETROIT, MICHIGAN, A scares-Amen or Mrcmcan "'wrnnovr-sosnnn srrwornan r The invention relates to screen structuresassociated-with. windows, preferably of the easement type, and has forits object to provide a frame substantially conforming to the contourofthe window casing and adapted to be readily attached to and removedfrom said casing without the use of tools, said frame carrying anupperand a lower screen member, the upper screen member preferably beingfixedto the frame and having its stiles orside members extending tosubstantially the full length of the frame to constitute guides for thelower screen member, which is vertically slidable thereon, the frame andscreen sections being so disposed as to permit freeoperation of theeasement sash or sashes.

The invention is'illustrated in the accompanying drawings, in which iFig. 1 is a perspective view, partly broken away, showing the screencarrying frames detachably secured'tothe window casing.

Fig.2 is a partial horizontal-section of the easement window andscreenoarrying frame. 7

Fig. 3 is a fragmentary front elevation of the window casing and screenframe.

Referring to the drawings, 1 indicates the window casing, which is ofthe easement sash 3 is pivotally supported by hinges 2, as indicated inFig. 2. The inner face of the casing 1 is usually finished with a flatsur facedinwardly extending flange 18 againstits closed position.

Detachablv secured to the flange 18 of the window casing is a screencarrying frame 1, generally rectangular in shape and substantiallyconforming to the contour of the 1nner face of the flange 18 of thewindow casing, said frame being formed of channel members halving baseportions 4 and 111- wardly extending flanges 5 and 6, the flanges 5 onthe stiles or side members of the frame being provided at top and bottomw1th key hole slots 20, which cooperate with headed studs 19 secured tothe inner face of the flange 18 of the Window casing, so that the frame1f may be readily attached and detached with respect to the windowcasing by engaging or disengagingthe studs 19 and key hole slots 20,without the use of tools.

Preferably rigidly attached to the upper portion of the screen carryingframe 1 is an upper screen section, which is rectanguy lar in shape andof substantially half the area of the frame 1, the rails and stiles ofthe screen frame being formed of substan tially channel shape, byinnerfianges9, base sections 8 and outer flanges 12, which latter, as shownin Fig. 2, are given an inward cant or inclination, so that they willexercise a spring-like effect, for a purposetobe hereinafter explained.The flange 9, whichabuts the flange 6 of the frame 1,is provided with agroove formed near itsinner'marginal edge in which the wiremesh fabric 7is secured by means of the usual rectangularwire frame 10, which isforced into the groove and also serves to stretch or hold the meshfabric taut. The flange 12, which extends to- Ward the raised orextruded section of the groove 10, has its end spaced some distance fromthe projecting groove member to leave a clear opening, wh1ch opening inthe stiles substantially the full length. of the screen supportingframe 1. I

The lower screen section is of substantially identical form, as theupper screen section,

and comprises a rectangular frame formed of channel sections,indicatedat 14, the inner flange being provided with a groovesimilar to 10 in theupper screen section to receive thewire frame 15 and stretch and securethe wire mesh fabric 13 in said screen frame. Secured to the inner faceof the stiles of the fl ll lower screen section at top and bottom, arerunners 16, 16, preferably formed as indicated in Fig. 2 to have a tightsliding fit in the channels formed in the interior of the stiles of theupper screen section, so that the inward cant of the flanges 12 of thestiles will exercise a spring-like pressure on the runners and hold themwith a relatively tight sliding fit within the channels of the stiles ofthe upper screen section, whereby the lower screen section may beadjusted and held in any position by the frictional engagementbetweenthe runners and the channeled guides.

Preferably, a screen carrying frame and the two screen sections areassembled and maintained as a unit to be applied to or detached from theinner face of the window casing in the manner hereinbefore described, sothat these units, which are relatively light, may be readily handled byan operative without the use of any tools. In assembling the units, theupper screen section is secured to the outer face of the flange 6 of theframe 1, preferably by spot welding, and the runners 16 carried by thestiles of the lower screen section are engaged with the channel-likemembers or grooves in the stiles of the upper screen section, so thatthe lower screen section is carried entirely by and in sliding relationupon the upper screen section and, as indicated, each unit, comprising ascreen carrying casing 1 with the two screen sections mounted thereon,is in proper relation for immediate adjustment to the inner face of thewindow casing by the simple act of engaging the studs 19 in the key holeslots 20. To remove each unit, it is necessary only to raise the unitvertically to bring the enlarged portion of the key hole slots inalignment with the heads of the studs 19 and move the screen carryingframe outward to clear the studs. Some of the salient advantages of thisparticular coordination are that it may be readily fabricated to conformsubstantially to any size and shape of window casing to which it may beapplied or from which it may be removed without the use of tools, whichwill effectively screen the window opening and which will permit readyaccess to the easement sash and its locking and actuating mechanism,which are entirely clear of the screen sections.

What I claim is: V

1. A demountable screen structure for casement windows, comprising ascreen supporting frame of channel members confor1ning to the contour ofthe window casing, an upper screen member fixed to said frame, a lowerscreen member slidably mounted on the upper screen member, and means fordetachably securing said frame to the casing.

2. A demountable screen structure for casement windows, comprising ascreen support- ,sss

ing frame of channel members conforming to the contour of the windowcasing, an upper screen member fixed to said frame and having its stilesextending to substantially the full length of the frame and constitutingguides, a lower screen member slidably sup ported by said guides, andmeans for detachably securing said screen supporting frame to saidcasing.

3. A demountable screen structure for casement windows, comprising ascreen supporting frame of channel members conforming to the contour ofthe window casing, an upper screen member fixed to said frame and havingits stiles extending to substantially the full length of the frame andformed as channel guides, a lower screen member having runners on itsstiles engaging said guides, and means for detachably securing saidscreen supporting frame to said casing.

4. The combination with a window casing, of a screen supporting frame ofchannel members conforming to the contour of the casing, upper and lowerscreen members, the former fixed to the frame and the lower memberslidably supported by the upper member, and stud and slot connectionsbetween the casing and the screen supporting frame.

5. The combination with a window casing, of a screen supporting frame ofchannel members conforming to the contour of the casing, upper and lowerscreen members, the former fixed to the frame and the lower memberslidably supported by the upper member, headed studs carried by thewindow casing, and key hole slots formed in the frame cooperating withsaid studs for detachably connecting the frame to the casing.

In testimony whereof I aliix my signature.

KARL F. JORSS.

